$ git clone -n https://gitee.com/wency_cn/jakarta-mail.git /var/lib/mock/dist-an23-build-492270-74553/root/chroot_tmpdir/scmroot/jakarta-mail
Cloning into '/var/lib/mock/dist-an23-build-492270-74553/root/chroot_tmpdir/scmroot/jakarta-mail'...
$ git fetch origin 7555609ae70ea31fe22b05d44d00420cad5c0883:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/jakarta-mail
 * [new ref]         7555609ae70ea31fe22b05d44d00420cad5c0883 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7555609 Update code from upstream